Applying 11.2.0.2 or 11.2.0.3 patch in place to existing 11.2.0.1 installation overwrites sqlnet.ora

(Doc ID 1484154.1)

Last updated on MAY 24, 2018

Applies to:

Oracle Provider for OLE DB - Version 11.2.0.2 and laterOracle Database - Enterprise Edition - Version 11.2.0.2 and laterOracle ODBC Driver - Version 11.2.0.2 and laterSQL*Plus - Version 11.2.0.2 and laterOracle Net Services - Version 11.2.0.2 and laterInformation in this document applies to any platform.

Symptoms

After applying 11.2.0.2 or 11.2.0.3 to an existing 11.2.0.1.0 installation, it may be noticed that

establishment of a connection takes longer than before the patch, or

errors such as ORA-12638 Credential Retrieval Failed occur during connection.

This behavior may affect all tools, such as SQLPlus, ODBC, ODP.NET, OLEDB, OCI, JDBC-OCI, etc.

The slow connection behavior may be much more noticeable if using LDAP for naming resolution.

This behavior is observed in higher versions like 12.1.0.1 and 12.1.0.2 as well

Changes

Application of 11.2.0.2 or 11.2.0.3 to existing 11.2.0.1 install.

Also on higher versions than 11.2.0.3.0.

Cause

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